Declarative loading indicator

frontend/components/LoadingIndicator/LoadingIndicator.js

@@ -1,14 +1,15 @@
 // @flow
 import React from 'react';
+import { inject, observer } from 'mobx-react';
 
-import styles from './LoadingIndicator.scss';
+@observer class LoadingIndicator extends React.Component {
+  componentDidMount() {
+    this.props.ui.enableProgressBar();
+  }
 
-const LoadingIndicator = () => {
-  return (
-    <div className={styles.loading}>
-      <div className={styles.loader} />
-    </div>
-  );
-};
+  componentWillUnmount() {
+    this.props.ui.disableProgressBar();
+  }
+}
 
-export default LoadingIndicator;
+export default inject('ui')(LoadingIndicator);

frontend/components/LoadingIndicator/LoadingIndicator.scss

@@ -1,20 +0,0 @@
-.loader {
-  width: 100%;
-  height: 2px;
-  background-color: #03A9F4;
-}
-
-.loading {
-  position: fixed;
-  top: 0;
-  z-index: 9999;
-
-  background-color: #03A9F4;
-  width: 100%;
-  animation: loading 4s ease-in-out infinite;
-}
-
-@keyframes loading {
-  from {margin-left: -100%; z-index:100;}
-  to {margin-left: 100%; }
-}

frontend/components/LoadingIndicator/LoadingIndicatorBar.js

@@ -0,0 +1,34 @@
+// @flow
+import React from 'react';
+import styled, { keyframes } from 'styled-components';
+
+const LoadingIndicatorBar = () => {
+  return (
+    <Container>
+      <Loader />
+    </Container>
+  );
+};
+
+const loadingFrame = keyframes`
+  from {margin-left: -100%; z-index:100;}
+  to {margin-left: 100%; }
+`;
+
+const Container = styled.div`
+  position: fixed;
+  top: 0;
+  z-index: 9999;
+
+  background-color: #03A9F4;
+  width: 100%;
+  animation: ${loadingFrame} 4s ease-in-out infinite;
+`;
+
+const Loader = styled.div`
+  width: 100%;
+  height: 2px;
+  background-color: #03A9F4;
+`;
+
+export default LoadingIndicatorBar;

frontend/components/LoadingIndicator/index.js

@@ -1,3 +1,5 @@
 // @flow
 import LoadingIndicator from './LoadingIndicator';
+import LoadingIndicatorBar from './LoadingIndicatorBar';
 export default LoadingIndicator;
+export { LoadingIndicatorBar };